src/bindings/python/bt2/bt2/native_bt_trace_class.i

   1 /*
   2  * The MIT License (MIT)
   3  *
   4  * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 %include <babeltrace2/trace-ir/trace-class-const.h>
  26 %include <babeltrace2/trace-ir/trace-class.h>
  27
  28 /* Helper functions for Python */
  29 %{
  30 static void
  31 trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_callable)
  32 {
  33         PyObject *py_trace_class_ptr = NULL;
  34         PyObject *py_res = NULL;
  35
  36         py_trace_class_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace_class),
  37                 SWIGTYPE_p_bt_trace_class, 0);
  38         if (!py_trace_class_ptr) {
  39                 BT_LOGF_STR("Failed to create a SWIG pointer object.");
  40                 abort();
  41         }
  42
  43         py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
  44         if (py_res != NULL) {
  45                 BT_ASSERT(py_res == Py_None);
  46         } else {
  47                 loge_exception();
  48         }
  49
  50         Py_DECREF(py_trace_class_ptr);
  51         Py_XDECREF(py_res);
  52 }
  53
  54 uint64_t bt_bt2_trace_class_add_destruction_listener(bt_trace_class *trace_class,
  55         PyObject *py_callable)
  56 {
  57         uint64_t id = UINT64_C(-1);
  58         bt_trace_class_add_listener_status status;
  59
  60         BT_ASSERT(trace_class);
  61         BT_ASSERT(py_callable);
  62         status = bt_trace_class_add_destruction_listener(
  63                 trace_class, trace_class_destroyed_listener, py_callable, &id);
  64         if (status != __BT_FUNC_STATUS_OK) {
  65                 BT_LOGF_STR("Failed to add trace class destruction listener.");
  66                 abort();
  67         }
  68
  69         Py_INCREF(py_callable);
  70         return id;
  71 }
  72 %}
  73
  74 uint64_t bt_bt2_trace_class_add_destruction_listener(bt_trace_class *trace_class,
  75         PyObject *py_callable);